Planer.



W G, KLEINFBLDER.

Patented Jan. 11,1910.

ANDREW. 5. Guam 00.. mow u uoammms, WASWNBYON. n c

TA?S A since,

PLANER.

Specification of Letters Patent.

Patented J an. 11, $910,

Application filed. November 18, 1907. Serial No. 402,668.

To all whom 111. may concern:

Be it known that I, WILLIAM G. KLEIN- FELDER, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented -certain new and useful Improvements in Planers,of which the following is a full, clear, and exact specification.

This invention relates more particularly to improvements in the meansfor holding the tool or tools during the operation of planers.

In many forms of planers, the tool is supported by a rail or way uponwhich the tool carriage slides, and carries a head in which the tool isclamped and which itself is provided with a way whereby the head mayslide or move in a direction transverse to the said rail. In many formsof work, as for example, forms having channels or depressions, thebottoms of which are required to be planed, the presence of theprojecting portions of the work prevents the rail from being positionedclose to the surface to be planed, and this necessitates the tool headbeing projected considerably below or beyond the rail, in order that thetool may reach the surface to be operated on. This of course deprivesthe head of a large percentage of its support upon the tool carriage,and often results, where the projection is extreme, in breaking the heador wrenching it loose from its way on the carriage.

My invention is designed to avoid these difficulties, and it has for itsprimary object to provide improved and simple means whereby the toolhead will be adequately braced where it projects beyond the carriage orthe way for the head on the carriage.

With a view to the attainment of these ends and the accomplishment ofcertain other objects which will hereinafter appear, the inventionconsists in the features of novelty which will now be described withreference to the accompanying drawings and more particularly pointed outin the claims.

In the said drawingsFigure l is a perspective view of a portion of aplaning machine provided with this invention, and Fig. 2 is a transversesection thereof on the line 22 of Fig. 1. Fig. 3 is a detail perspectiveview of the way extension.

1 is a rail or guide-way for the tool carriage, which may be horizontalor vertical, according to the style of planer on which it is to beemployed. In this exemplification of the invention, however, it is shownin a horizontal position. The carriage before referred to is shown at 2,and is arranged to slide back and forth upon the rail or way 1, and iscont-rolled during its movement by a screw 8, as usual, and 4 is the waymounted upon the carriage 2 transversely thereof for holding the guidingtool head 5, which may be of the usual or any suitable construction,provided with means for clamping the tool, which is shown at 6, the toolhead being controlled in its movements perpendicular, or at an angle, tothe rail 1 by the usual feed screw 7, or other suitable means, whichserves to lower the head 5, when necessary, in a manner to cause it toproject below the lower end of the way t and carriage 2.

It is quite evident that when the work is of such form to require thehead 5 to be lowered a considerable distance below the lower end of theway ft in order that the tool might reach the surface to be planed, thegreat leverage exerted against the tool head, thus deprived of the majorpart of its support on the carriage, is often suflicient to wrench thecarriage loose or break it. To remedy this, I provide the carriage withan extension 8, which carries a section 9 of the tool head way I, andwhich is arranged in direct alinement therewith when the extension 8 isin place, so that as the tool head is lowered it will slide against theextension Sand way 9 and be adequately supported and braced thereby.This extension should preferably, but not necessarily, be readilyremovable, so that when the work requiring its presence is finished, itmay be quickly laid aside if its presence would interfere with the worknext to be done. I therefore prefer to provide the extension with'a footpiece or flange 10, which rests against the under side of the carriage2, and is removably held in place by a cap screw or other suitable means11 passing therethrough and screwed into the bottom of the carriage, 12being a dowelpin serving to hold the extension against rotary movementon the cap screw, and also serving as a means of positioning itaccurately with reference to the way 4t. The front side of the extension9, however, may, if desired, be provided with a flange or lip 13projecting upwardly and partially overlapping the face of the carriage2, the way section 9 on the extension 8 being also continued upwardlyabove the upper face of the flange 10 to meet the loWer end of the way1- and to form therewith a continuing Way.

In order that the invention may be understood by those skilled in theart, the details of an exemplification thereof have been thusspecifically described, but

WVhat I claim is:

1. In a device for the purpose described, the combination of meansforholding the tool, a support upon Which said means travels for feedingthe tool, and a detachable extension for said support adapted to receivethe tool holding means.

2. In a device for the purpose described, the combination of means forholding a tool, a tool carriage embodying means on which the first saidmeans travels for feed ing the tool, and an extension upon which saidtool supporting means slides beyond the carriage, removably secured tothe carriage.

8. In a device for the purpose described, the combination of a toolcarriage, a tool head slidably mounted upon the carriage, and anextension removably secured to the carriage and having a flange or lipoverlapping the face of the carriage, said extension having its facearranged in the plane of movement of the tool head and adapted tosupport and brace the same When projecting beyond the carriage.

at. In a device for the purpose described, the combination of a toolcarriage, a tool head slidably mounted thereon, an extension arranged inthe plane of movement of the tool head and adapted to be overlapped bythe same When the tool head projects beyond the carriage, said extensionhaving a flange arranged at an angle thereto removably attached to thecarriage.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing Witnesses, on this 16th day of November, A.D. 1907.

M. G. KLEINFELDER.

Witnesses FRANCIS A. HOPKINS, CHAS. H. SEEM.

